I wonder if the last little bit that may be crude in some peoples eyes is totally about Guns and Roses attitude. Parody is about taking something from someone or somewhere and embellishing it. To "flick the bird" as he does at the end is actually far less offensive than what GnR does in concert and their lives. (playing concerts so drunk out of their skulls they forget lines or not bothering to play as promised).I am not a fan of them as I find their attitude to life and especially their attitude to women offensive. Ricks "nothing really matters except me" is not the original Queen line. That was "nothing really matters TO me" So I guess his line change and last sign is fitting it with GnR. As a Kiwi flicking the bird is not regarded as offensive as someone in the US may find it as well.